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YTR to BFI: distance & flight time
Trenton (CFB Trenton) → Seattle (Boeing Field King County International Airport)
2,139 mi
3,442 km · 1,858 nm
4h 40m
estimated nonstop flight time
-3h
time difference · heading west
See live YTR→BFI fares Phone-only fares on this route — call free
Flight time details
2,139 miles nonstop takes roughly 4h 40m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- YTR — CFB Trenton · Trenton, Canada
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near YTR
- YPQ · Peterborough Airport42 mi away
- YGK · Kingston Norman Rogers Airport47 mi away
- YYZ · Lester B. Pearson International Airport109 mi away
- ROC · Greater Rochester International Airport69 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is YTR from BFI?
The flight distance from Trenton (YTR) to Seattle (BFI) is 2,139 miles (3,442 km, 1,858 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YTR to BFI?
A nonstop flight takes about 4h 40m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Trenton and Seattle?
Seattle is 3 hours behind Trenton.
What is the cheapest way to fly from YTR to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YTR–BFI that never appear on search engines, with no booking fees.